A river valley civilization or river culture is an agricultural nation or civilization situated beside and drawing sustenance from a river. A "civilization" means a society with large permanent settlements featuring urban development, social satisfaction, specialization of labor, centralized organization, and written or other formal means of communication. A river gives the inhabitants a reliable source of water for drinking and agriculture. Additional benefits include fishing, fertile soil due to annual flooding, and ease of transportation. The first great civilizations, such as those in Mesopotamia and Egypt, all grew up in river valleys.
If memory serves me right, it was Sun Yat-sen who used the methods of civil disobedience.
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Harriet Tubman was an escaped enslaved woman who became a “conductor” on the Underground Railroad, leading enslaved people to freedom before the Civil War, all while carrying a bounty on her head. But she was also a nurse, a Union spy and a women's suffrage supporter.
